AZ70 Galvalume Steel Coil (70 g/m²)
High-Performance AZ70 Galvalume Coil with Superior Corrosion Resistance, Heat Reflectivity, and Long Service Life for Roofing, Appliances, and Industrial Applications
Galvalume Steel Coil AZ70 – Premium Corrosion-Resistant Steel
Galvalume Steel Coil AZ70 (70 g/m²) is a high-performance steel coil coated with an aluminum-zinc alloy, consisting of approximately 55% aluminum (Al), 43–43.5% zinc (Zn), and 1.5–1.6% silicon (Si). The coating weight is about 70 g/m² per side, meeting ASTM AZ70 standards.
This coating combines the barrier protection of aluminum with the sacrificial protection of zinc, delivering excellent corrosion resistance and long-term durability.
Key Features
Superior Corrosion Resistance: 4–6 times higher than standard hot-dip galvanized steel
Excellent Heat Resistance & Reflectivity: Stable at approximately 300 °C, with reflectivity twice that of galvanized steel
Long Service Life: Typically 20–30 years under harsh environmental conditions
Outstanding Processability: Excellent ductility, impact resistance, and coating adhesion; suitable for stamping, bending, welding, and coating
AZ50 Galvalume Steel Coil Specifications
| Parameter | Value / Description |
|---|---|
| Coating Weight | AZ70 (70 g/m² total, both sides) |
| Alloy Composition | Al 55% / Zn 43–43.5% / Si 1.5–1.6% |
| Thickness Range | 0.12 mm – 2.0 mm |
| Width Range | 600 mm – 1,500 mm (common: 750–1250 mm) |
| Coil Weight | 2–8 tons per coil |
| Inner / Outer Diameter | 508 mm or 610 mm, customizable |
| Steel Grades | DX51D, G550, SGLCC, etc. |
| Surface Treatment | Standard / Minimum / Spangle-Free, Chromate, Oiled, Anti-Fingerprint (AFP), etc. |
Surface Options & Standards
Surface Appearance
Available in regular spangle, minimized spangle, or zero spangle finishes, offering aesthetic flexibility for different applications.Surface Treatments
Optional Anti-Fingerprint (AFP), chromated, or oiled coatings to enhance processability and additional corrosion protection.Standards Compliance
Manufactured according to international standards: ASTM A792, JIS G3321, EN 10346, GB/T 2518, DIN.
Applications
Construction: Roofing panels, exterior walls, canopies, window and door frames, decorative panels
Appliances & Machinery: Refrigerator panels, air conditioner casings, microwave components
Light Vehicles & Industrial: Vehicle body panels, interior structural parts, equipment enclosures
Packaging & Delivery
Packaging: Standard seaworthy packaging to ensure safety during transport
Coil Weight: Typically 3–5 tons per coil; can be customized
Lead Time: 15–30 days depending on order quantity and production schedule
Shipping: Sea or air freight, worldwide delivery available
Get a Quote Today
At HengZe Steel, we specialize in supplying premium Galvalume Steel Coils (GL) engineered for excellent corrosion resistance, reliable performance, and long service life.
Whether you need detailed product specifications, competitive pricing, or professional technical support, our experienced team is committed to providing solutions tailored to your project requirements.
👉 Or email us at sales@hengzesteel.com.
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